Koral OT 1722 television set

The Koral OT 1722 television set was a breakthrough design, which set the direction for further development of television sets in Poland. The Koral television set was designed as a 19-valve, superheterodyne receiver with diversified methods of audio reception. It was designed to display black-and-white television and was equipped with circuits for 12 television channels in the OIRT (Organisation Internationale de Radiodiffusion et de Télévision) standard. It had autonomous contrast and brightness controls (reacting to the lighting in the room in which the receiver is located) and an automatic black control system. A novelty in the design of the Koral TV set was the use of a 17-inch CRT with a large deflection angle (110°), as well as the use of printed circuits. Manufacturer: Warszawskie Zakłady Telewizyjne, 1963 Inv. No.: MIM24/VI-3 Model prepared on the basis of photogrammetric measurements Licence: CC BY-NC-SA (CC Attribution-NonCommercial-ShareAlike)